Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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04/19/1983 | US4380739 Electronic differential controller |
04/19/1983 | US4380737 Fast AGC slew circuit |
04/19/1983 | US4380711 Linearization circuit |
04/12/1983 | US4379995 Gain controlled amplifier |
04/06/1983 | EP0075647A1 Circuit for measuring the reception quality of an FM receiver |
04/05/1983 | US4379272 AGC Circuit with level-compensating input |
04/05/1983 | US4379269 RF Amplifier having automatic gate bias switching in response to band selection |
04/05/1983 | CA1144081A1 Noise removing apparatus |
03/29/1983 | US4378527 Device for amplifying and sampling analog signals |
03/22/1983 | US4377832 Voltage transient suppressor circuit |
03/16/1983 | EP0074294A1 Hyperfrequency amplifier with field effect transistors, particularly for a Doppler radar |
03/15/1983 | CA1142859A1 Sound reproduction in a space with an independent sound source |
03/08/1983 | US4376310 Mobile data terminal channel busy arrangement |
03/08/1983 | US4376267 Video preamplifier for laser systems |
03/08/1983 | CA1142608A1 Symmetrically gain controlled differential amplifier |
03/08/1983 | CA1142597A1 Radio-frequency head having a self-adaptive dynamic range |
03/08/1983 | CA1142596A1 Intermediate frequency detection circuit |
03/08/1983 | CA1142445A1 Signal-controllable attenuator employing a digital-to-analog converter |
03/01/1983 | CA1142237A1 Radioelectric apparatus for collecting data coming from several stations |
02/23/1983 | EP0072741A2 Programmable gain integrator stage including means for offset voltage elimination |
02/22/1983 | US4375051 Automatic impedance matching between source and load |
02/15/1983 | US4374300 Sound mixer devices |
02/15/1983 | CA1141443A1 Circuit for controlling the weighting coefficients in an analog adaptive equalizer |
02/15/1983 | CA1141303A1 Method and system of controlling sound and effects devices by a film strip |
02/09/1983 | EP0071594A1 Adjustment device for the level control of audio signals |
02/08/1983 | US4373139 Detectors |
02/01/1983 | US4371981 Spectral squelch |
02/01/1983 | US4371842 Self-adjusting dual mode automatic gain control circuit |
02/01/1983 | US4371841 Circuit arrangement for eliminating turn-on and turn-off clicks in an amplifier |
02/01/1983 | US4371840 Gain control circuit for pulse width modulation amplifier |
01/25/1983 | US4370725 Method of and circuit arrangement for automatic signal-level control |
01/25/1983 | US4370681 Gain control circuit for noise reduction system |
01/25/1983 | US4370622 IMD Limiter |
01/25/1983 | US4370522 FM Receiver for use with motorcars |
01/25/1983 | CA1140224A1 Voltage controlled attenuator |
01/25/1983 | CA1140216A1 Data modem false equilibrium circuit |
01/25/1983 | CA1140211A1 Circuit system for the generation of a direct control voltage depending upon an alternating voltage |
01/19/1983 | EP0069843A1 LF amplifier for a television receiver |
01/18/1983 | US4369414 High-frequency input circuit for two inputs |
01/18/1983 | US4369411 Circuit for converting single-ended input signals to a pair of differential output signals |
01/18/1983 | US4369410 Monolithically integrable transistor amplifier having gain control means |
01/18/1983 | CA1139850A1 Amplifier arrangement with variable gain factor |
01/18/1983 | CA1139846A1 Receiver input circuit |
01/12/1983 | EP0069515A2 A digital automatic gain control circuit |
01/12/1983 | EP0069214A1 Circuit for measuring the reception quality of an FM receiver |
01/11/1983 | US4368435 System for maximum efficient transfer of modulated audio frequency energy |
01/05/1983 | EP0068690A1 Radio communications receivers |
01/05/1983 | EP0068185A1 Circuit arrangement for generating a D.C. control voltage dependent upon an A.C. voltage |
12/28/1982 | US4366450 Automatic gain control circuit |
12/28/1982 | US4366449 Integrated voltage control variable gain circuit and a signal transmission circuit using the same |
12/28/1982 | US4366443 Television intermediate frequency amplifier |
12/28/1982 | US4366442 Amplifier with muting circuit |
12/28/1982 | US4366441 Signal-muting circuit for bridge amplifier |
12/22/1982 | EP0067585A2 Noise sensitivity reduction for a TV receiver AGC system |
12/21/1982 | US4365278 Device for detecting non-recorded portions on magnetic tape |
12/21/1982 | US4365208 Gain-controlled amplifier using a controllable alternating-current resistance |
12/21/1982 | CA1138058A1 Hybrid automatic gain control circuit |
12/21/1982 | CA1138057A1 Signal level detector |
12/14/1982 | CA1137634A1 Method and device for amplifying multiplexed signals |
12/14/1982 | CA1137589A1 Smoke detector |
12/08/1982 | EP0066110A2 Noise removing apparatus in an FM receiver |
12/07/1982 | US4363001 Digital gain control apparatus |
12/07/1982 | CA1137178A1 Method and apparatus for controlling bias voltage in regulating amplifiers |
11/30/1982 | US4361815 Operational amplifier with programmable gain |
11/30/1982 | US4361813 FM Audio demodulator with dropout noise elimination circuit |
11/24/1982 | EP0065339A1 Radiometer |
11/23/1982 | US4360929 Automatic gain control circuit |
11/23/1982 | US4360787 Digitally controlled wide ranch automatic gain control |
11/23/1982 | US4360786 Variable-gain differential amplifier |
11/16/1982 | US4359780 High speed squelch circuit |
11/16/1982 | US4359604 Apparatus for the detection of voice signals |
11/16/1982 | US4359602 Multiple input audio program system |
11/16/1982 | US4359600 Programable low impedance digital attenuators |
11/09/1982 | US4358738 Signal presence determination method for use in a contaminated medium |
11/09/1982 | CA1135350A1 Inhibit circuit for a differential amplifier |
11/02/1982 | US4357577 Instantaneous floating point amplifier |
11/02/1982 | US4357492 Automatic microphone mixing apparatus |
11/02/1982 | CA1134918A1 Protected amplifier apparatus |
10/27/1982 | EP0063364A1 I.F. stage gain control circuit |
10/26/1982 | US4356517 PCM Audio reproducing system |
10/26/1982 | US4356350 FM Receiver |
10/19/1982 | US4355417 Squelch control circuit for amplitude modulated RF receivers |
10/19/1982 | US4355414 Automatic gain control system |
10/19/1982 | US4355407 Device for disconnecting the receiver in case of a small signal-to-noise ratio for a digital-modulated radio system |
10/19/1982 | US4355402 Data modem false equilibrium circuit |
10/12/1982 | US4354163 High voltage buffer amplifier |
10/12/1982 | CA1133595A1 Amplifier load correction system |
10/12/1982 | CA1133593A1 Thermally compensated variable gain differential amplifier |
10/05/1982 | US4353037 Amplifier protection circuit |
10/05/1982 | US4353036 Field effect transistor amplifier with variable gain control |
09/28/1982 | US4352207 Noise suppression circuit |
09/28/1982 | US4352089 Voice warning system for an automotive vehicle |
09/28/1982 | US4352030 Pulse detectors |
09/22/1982 | EP0060342A1 Level converter |
09/21/1982 | US4350959 Feedback signal amplifier |
09/15/1982 | EP0060164A1 Sliding class A broadband linear amplifier with low power consumption, and circuit comprising at least one such amplifier |
09/14/1982 | US4349779 Volume control apparatus |
09/14/1982 | US4349681 2-Amino-3-chloro-5-trifluoromethylpyridine |
09/14/1982 | CA1131722A1 Pulse width modulating circuit |
09/07/1982 | CA1131356A1 Analog recording on magnetic media |